The lenses of a particular set of binoculars have a coating with index of refraction n=...
The lenses of a particular set of binoculars have a coating with index of refraction n= 1.38, and the glass itself has n = 1.52.
Part A
If the lenses reflect a wavelength of 545 nm the most strongly, what is the minimum thickness of the coating?
Homework Answers
The formula to apply in this case, where the index of refraction of the bottom surface below the coating(glass) is greater than the index of refraction above the surface of the coating (air), is...
2nt = mλ. This is for constructive interference of 545 nm as given in the problem
(2)(1.38)(t) = (1)(545 X 10-9)
t = 1.97 X 10-7 m
This answer can aslo be stated in different ways, they are .197 μm or 197 nm. All three answers are the same using different metric prefixes.
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The lenses of a particular set of binoculars have a coating with
index of refraction n=...
Sometimes a nonreflective coating is applied to a lens, such as a camera lens. The coating has an index of refraction between the index of air and the index of the lens. The coating cancels the refle...
Sometimes a nonreflective coating is applied to a lens, such as a camera lens. The coating has an index of refraction between the index of air and the index of the lens. The coating cancels the reflections of one particular wavelength of the incident light. Usually, it cancels green-yellow light (λ 546.0 nm) in the middle of the visible spectrum. (a) Assuming the light is incident perpendicular to the lens surface, what is the minimum thickness of the coating in...
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I dont understand thin film interference. Thanks in
advance
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23 A piece of glass of index of refraction 1.50 is coated with a thin layer...
23 A piece of glass of index of refraction 1.50 is coated with a thin layer of magnesium fluoride of index of refraction 1.38. It is illuminated with light of wavelength 680 nm. Determine the minimum thickness of the coating that will result in no reflection
2. -/5 points KatzPSE1 36.P.015 My Notes Ask Your Teacher Sometimes a nonreflective coating is applied to a lens, such as a camera lens. The coating has an index of refraction between the index of ai...
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A thin coating of Magnesium Fluoride (MgF2) is deposited on the surface of some eyeglasses which...
A thin coating of Magnesium Fluoride (MgF2) is deposited on the surface of some eyeglasses which have an index of refraction of 1.6. The MgF2 has an index of refraction of 1.38. (a) What is the minimum thickness of the coating so that green light of wavelength 500 nm has minimal reflectance (i.e. maximum transmission for anti-reflective coating)? (b) What is the minimum thickness of the coating so that green light of wavelength 500 nm has maximum reflectance?
a material having and index of refraction of 1.30 is used as an anti-reflective coating on...
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Light is incident on a lens with a thin coating. The light first travels through the...
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Sometimes a nonreflective coating is applied to a lens, such as a camera lens. The coating has an index of refraction between the index of air and the index of the lens. The coating cancels the reflections of one particular wavelength of the incident light. Usually, it cancels green-yellow light (λ 546.0 nm) in the middle of the visible spectrum. (a) Assuming the light is incident perpendicular to the lens surface, what is the minimum thickness of the coating in...
I dont understand thin film interference. Thanks in
advance
n-1.00 n-1.33 n=1 50 3. A thin film of thickness t and index of refraction 1.33 coats a glass with index of refraction 1.50 as shown above. Which of the following thicknesses t will not reflect light with wavelength 640 nm in air? (A) 160 nm (8) 240 nm (C) 360 nm (D) 480 nm 4. Lenses in fine quality cameras are coated to reduce the reflection from the lenses. If...
A material having an index of refraction of 1.25 is used as an antireflective coating on a piece of glass (n = 1.50). What should be the minimum thickness of this film in order to minimize reflection of 490 nm light? nITm
A material having an index of refraction of 1.25 is used as an antireflective coating on a piece of glass (n = 1.50). What should be the minimum thickness of this film in order to minimize reflection of...
A material having an index of refraction of 1.20 is used as an antireflective coating on a piece of glass (n 1.50). What should be the minimum non-zero thickness of this film in order to minimize reflection of 450 nm light? nm If instead a material with an index of refraction of 2.10 is used for the coating, what should be the minimum non-zero thickness of this film in order to minimize reflection nm
23 A piece of glass of index of refraction 1.50 is coated with a thin layer of magnesium fluoride of index of refraction 1.38. It is illuminated with light of wavelength 680 nm. Determine the minimum thickness of the coating that will result in no reflection
2. -/5 points KatzPSE1 36.P.015 My Notes Ask Your Teacher Sometimes a nonreflective coating is applied to a lens, such as a camera lens. The coating has an index of refraction between the index of air and the index of the lens. The coating cancels the reflections of one particular wavelength of the incident light. Usually, it cancels green-yellow light (à - 552.0 nm) in the middle of the visible spectrum. (a) Assuming the light is incident perpendicular to the...
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